View Full Version : 454 + T56 6/speed
MEGALADON 02-23-2007, 01:18:12 PM Not sure what a 95 trans am T56 will stand up to on HP or torque.
I am going to put my 454 in my 71 with the six speed. I am using
a stock 1978 GMC 3/4 ton pickup motor with the large oval port heads.
It will only have a head job, new intake, and 750 carb with an EDELBROCK
PERFORMER plus camshaft (its not very big) Anyone think I may have a probem
running a bigblock with a six ???
BlueCamaro 02-23-2007, 01:21:00 PM I wouldnt run the eddy cams. They have problems with openening the valves slowly (something) like that, and its a rather dated design for a performance cam.
MEGALADON 02-23-2007, 01:29:53 PM I wouldnt run the eddy cams. They have problems with openening the valves slowly (something) like that, and its a rather dated design for a performance cam.
I don't want a big cam. I ran it on my small block and loved it...
What do you suggest?? I want a smooth cam with a little more
than stock lift. Thanks..
BlueCamaro 02-23-2007, 01:35:34 PM I don't want a big cam. I ran it on my small block and loved it...
What do you suggest?? I want a smooth cam with a little more
than stock lift. Thanks..
Comp Cams has is pretty good for thier 'Xtreme Energy' lineup, you should check them out. Lunati also offers some good cams too.
Damon 02-23-2007, 01:37:06 PM The T56 is the same trans they used behind the V10 in the Dodge Viper as well as a zillion LT1 and LS1 Camaros and Firebirds. It'll live behind your big block.
Note the Viper version of the trans had a much heavier duty clutch assembly than the same trans in a Camaro (not surpising). Also, the Viper version used steel shift fork assemblies where the Camaro used aluminum. Other than that, the guts are basically the same.
fabio 02-23-2007, 01:40:22 PM I wouldnt run the eddy cams. They have problems with openening the valves slowly (something) like that, and its a rather dated design for a performance cam.
everyone always says this but the older stuff actually works great imo.
fabio 02-23-2007, 01:42:11 PM what's required as far as mating the t56 to the chevy block?
MEGALADON 02-23-2007, 03:27:51 PM what's required as far as mating the t56 to the chevy block?
Aftermarket flywheel made to work with the T56.
I am going to use the factory hydraulic clutch setup.
fabio 02-23-2007, 08:10:39 PM are you using the stock t56 bellhousing?
MEGALADON 02-23-2007, 08:32:28 PM are you using the stock t56 bellhousing?
Yes, everything T56. Only thing you need is a flywheel and ATS
sells the crossmember and hydraulic clutch bracket.:cool:
Even when you order a new clutch you order it for the LT1
even though you have something else..
jakeshoe 02-23-2007, 11:45:48 PM I used an LT1 T56 behind a 454 with a conventional flywheel, conventional push style clutch, stock LT1 bellhousing, and a hydraulic throwout bearing setup.
pdq67 02-24-2007, 11:47:57 AM IMHO!!
NOTE!! Nothing fancy here at all, but I figure these will be better than the usual 268HE or 270 Magnum I would normally go with....
I think that you will really like CC's 265DEH, dual energy cam!! Just use the needed valve springs due to it being non-stock........... Should be almost SMOOTH!
This is not a race cam, but like CC say's it is a powerfully efficient daily driver cam!
And if you don't mind a little "cam-cackle" at idle , then I would step up to the 275DEH and again needed valve springs!!
pdq67
PS., and if you want to go CHEAP, then buy Summit's version of the E-brock BB Performer+ cam and lifter kit for less than a $100.
Summit's part # SUM-K1301.
I think it is the same cam as the E-brock jobber..
angelz28 05-06-2007, 02:03:08 AM I used an LT1 T56 behind a 454 with a conventional flywheel, conventional push style clutch, stock LT1 bellhousing, and a hydraulic throwout bearing setup.
How do you do that¨?
spinmaster 05-06-2007, 08:22:57 AM [/SIZE][/SIZE]
How do you do that¨?
Same here. I would like to see some pics of this set up.
angelz28 05-06-2007, 08:51:25 AM Same here. I would like to see some pics of this set up.
pleaese
jakeshoe 05-06-2007, 12:35:23 PM I used an LT1 T56, the stock bellhousing, a Centerforce II DF clutch 10.5", a lightweight steel 153 tooth flywheel, a counterbalance plate for the 454's external balance, and a McLeod hydraulic throwout bearing.
The only thing you have to be sure of doing it this way is that you have enough room. The LT1 bellhousing is shallower than a conventional one.
The McLeod T-O bearing had o-rings on the inside to fit the smaller diameter of the T56 T-O housing.
I don't remember the P/N, I'm pretty sure I have posted it here before.
Another member bought the T56 setup from me when I later swapped an automatic back in.
spinmaster 05-06-2007, 11:02:31 PM Jake did you mount the master cylinder for the throwout bearing on the bellhousing some how? I am trying to see how you used a stock Z bar push bar unless you figred out how to mount it to the back side of the bellhousing or on a Lakewood bellhousing. Pic of this set up would be awsome to see.
jakeshoe 05-07-2007, 12:50:36 AM Jake did you mount the master cylinder for the throwout bearing on the bellhousing some how? I am trying to see how you used a stock Z bar push bar unless you figred out how to mount it to the back side of the bellhousing or on a Lakewood bellhousing. Pic of this set up would be awsome to see.
No,
Clutch master was on the firewall. I said conventional push style clutch, not mechanical clutch linkage.
LT1s used a pull style clutch.
angelz28 05-07-2007, 02:48:46 AM No,
Clutch master was on the firewall. I said conventional push style clutch, not mechanical clutch linkage.
LT1s used a pull style clutch.
so how is that
classic style clutch?
classic style pressure plate?
and
hidrawlic throwout bearing?
is that it?
spinmaster 05-07-2007, 06:47:45 AM Now I understand. Standard style pressure plate but you used a Hydraulic McLeod throwout bearing that mounts to the front cover of the tranny.
angelz28 05-07-2007, 09:20:06 AM so how is that
classic style clutch?
classic style pressure plate?
and
hidrawlic throwout bearing?
is that it?
Is that it??? just like that??
jakeshoe 05-07-2007, 01:00:25 PM Yes.
spinmaster 05-07-2007, 06:53:47 PM Hey Jake did you have to mod the front cover on the tranny for the throwout bearing or did it mount in front of the adaptor plate? The throwout bearing set up you had is really thin and it has four bolt slots that go where the bearing suport goes on the adaptor plate, is this right?
jakeshoe 05-07-2007, 11:31:49 PM I don't think it had 4 slots. You leave the t-o bearing sleeve in place. Slide the T-O bearing on. Check clearance, and assemble it.
I'll look at my pics in a few.
spinmaster 05-08-2007, 12:15:49 AM I don't think it had 4 slots. You leave the t-o bearing sleeve in place. Slide the T-O bearing on. Check clearance, and assemble it.
I'll look at my pics in a few.
Sorry Jake thats what I ment to say.
jakeshoe 05-08-2007, 12:41:15 AM Here's the T-O brg I used.
http://i32.photobucket.com/albums/d8/jakeshoe/hyd.jpg
angelz28 05-08-2007, 08:24:23 AM Here's the T-O brg I used.
http://i32.photobucket.com/albums/d8/jakeshoe/hyd.jpg
oh cool man thanx.
spinmaster 05-09-2007, 10:42:05 PM I have seen that style before.
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